<template name="component-name">
    <div class="app-container">
		<!-- 顶部 Header 区域 -->
		<mt-header fixed title="黑马程序员·Vue项目">
			<span slot="left" @click="goBack" v-show="flag">
				<mt-button icon="back">返回</mt-button>
			</span>
		</mt-header>

		<!-- 中间路由router-view区域 -->
		<transition>
			<router-view></router-view>
		</transition>

		<!-- 底部 Tabbar 区域 -->
		<nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item1" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item1" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item1" to="/cart">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart"><span class="mui-badge" id="badge">{{ $store.getters.getAllCount }}</span></span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item1" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
    </div>
</template>

<script>
	export default {
		data(){
			return {
				flag: false
			}
		},
		created(){
			this.flag = this.$route.path === '/home' ? flag : true
		},
		methods: {
			goBack(){
				// 点击后退
				this.$router.go(-1)
			}
		},
		watch: {
			'$route.path': function (newPath) {
				if(newPath === '/home'){
					this.flag = false
				} else {
					this.flag = true
				}
			}
		}
	}
</script>


<style lang="scss" scoped>
    .app-container{
		padding-top: 40px;
		padding-bottom: 50px;
		overflow: hidden;
	}
	
	.v-enter {
		opacity: 0;
		transform: translateX(100%)
	}
	.v-leave-to {
		opacity: 0;
		transform: translateX(-100%);
		position: absolute;
	}
	.v-enter-active,
	.v-leave-active{
		transition: all 0.5s ease;
	}
	
	// 改类名，解决tabbar点击无法切换的问题
	.mui-bar-tab .mui-tab-item1.mui-active{
		color: #007aff
	}
	.mui-bar-tab .mui-tab-item1 {
		display: table-cell;
		overflow: hidden;
		width: 1%;
		height: 50px;
		text-align: center;
		vertical-align: middle;
		white-space: nowrap;
		text-overflow: ellipsis;
		color: #929292;
	}
	.mui-bar-tab .mui-tab-item1 .mui-icon {
		top: 3px;
		width: 24px;
		height: 24px;
		padding-top: 0;
		padding-bottom: 0;
	}
	.mui-bar-tab .mui-tab-item1 .mui-icon~.mui-tab-label {
		font-size: 11px;
		display: block;
		overflow: hidden;
		text-overflow: ellipsis;
	}
	.mint-header{
		z-index: 99;
	}
</style>